<?php
	/**
	 * ConditionArgument class
	 * @author NHN (developers@xpressengine.com)
	 * @package /classes/xml/xmlquery/argument
	 * @version 0.1
	 */
	class ConditionArgument extends Argument {
		/**
		 * Operator keyword. for example 'in', 'notint', 'between'
		 * @var string
		 */
		var $operation;


		/**
		 * constructor
		 * @param string $name
		 * @param mixed $value
		 * @param string $operation
		 * @return void
		 */
		function ConditionArgument($name, $value, $operation){
			$operationList = array('in'=>1, 'notin'=>1, 'not_in'=>1, 'between'=>1);
			if(isset($value) && isset($operationList[$operation]) && !is_array($value) && $value != ''){
				$value = str_replace(' ', '', $value);
				$value = str_replace('\'', '', $value);
				$value = explode(',', $value);
			}
			parent::Argument($name, $value);
			$this->operation = $operation;
		}

		/**
		 * create condition value. set $this->value
		 * @return void
		 */
		function createConditionValue(){
			if(!isset($this->value)) return;

                        $operation = $this->operation;
                        $value = $this->value;

                        switch($operation) {
                            case 'like_prefix' :
									if(defined('__CUBRID_VERSION__') 
											&& __CUBRID_VERSION__ >= '8.4.1') {
										$this->value = '^' . str_replace('%', '(.*)', preg_quote($value));
											}
                                    else 
										$this->value =  $value.'%';
                                break;
                            case 'like_tail' :
									if(defined('__CUBRID_VERSION__') 
											&& __CUBRID_VERSION__ >= '8.4.1') 
										$this->value = str_replace('%', '(.*)', preg_quote($value)) . '$';
                                    else								
										$this->value = '%'.$value;
                                break;
                            case 'like' :
									if(defined('__CUBRID_VERSION__') 
											&& __CUBRID_VERSION__ >= '8.4.1') {
										$this->value = str_replace('%', '(.*)', preg_quote($value));								
											}
                                    else								
										$this->value = '%'.$value.'%';
                                break;
                            case 'notlike' :
                                    $this->value = '%'.$value.'%';
                                break;
                            case 'notlike_prefix' :
                                    $this->value = $value.'%';
                                break;
                            case 'notlike_tail' :
                                    $this->value = '%'.$value;
                                break;
                            case 'in':
                                    if(!is_array($value)) $this->value = array($value);
                                break;
                            case 'notin':
							case 'not_in':
                                    if(!is_array($value)) $this->value = array($value);
                                break;
                        }
		}

		/**
		* Since ConditionArgument is used in WHERE clause,
		* where the argument value is compared to a table column,
		* it is assumed that all arguments have type. There are cases though
		* where the column does not have any type - if it was removed from
		* the XML schema for example - see the is_secret column in xe_documents table.
		* In this case, the column type is retrieved according to argument
		* value type (using the PHP function is_numeric).
		*
		* @return type string
		*/
		function getType(){
			if($this->type)
			{				
				return $this->type;
			}
			else if(!is_numeric($this->value))
			{
				return 'varchar';
			}
			else 
			{
				return '';
			}
		}

		function setColumnType($column_type){
			if(!isset($this->value)) return;
			if($column_type === '') return;

			$this->type = $column_type;
		}

        }

?>
